... SD card extension cable, Colorful PVC 15Pin ribben cable For DVR, GPS navigation What is SD extension cable?1. It ... which is used in Computer, GPS, Car DVD and DVR. The other side is SD Slot for Phone Card, ... Car DVD, Outdoor advertising screen, Large monitoring instrument, etc.How to use it: 1. Insert the SD card into the SD ... extension cable, Colorful PVC 15Pin ribben cable For DVR, GPS navigation